quote() paths in justfile

This makes some recipes work on Windows, and on other systems if
there are wunusual paths, that had previously broken in those
scenarios. That includes the default recipe.

Author: EliahKagan

justfile

@@ -3,7 +3,7 @@
 #   like a script, with `./justfile test`, for example.
 
 default:
-    {{ just_executable() }} --list
+    {{ quote(just_executable()) }} --list
 
 alias t := test
 alias c := check
@@ -192,10 +192,10 @@ unit-tests-flaky:
     cargo test -p gix --features async-network-client-async-std
 
 target_dir := `cargo metadata --format-version 1 | jq -r .target_directory`
-ein := target_dir / "debug/ein"
-gix := target_dir / "debug/gix"
-jtt := target_dir / "debug/jtt"
-it := target_dir / "debug/it"
+ein := quote(target_dir / "debug/ein")
+gix := quote(target_dir / "debug/gix")
+jtt := quote(target_dir / "debug/jtt")
+it := quote(target_dir / "debug/it")
 
 # run journey tests (max)
 journey-tests:
@@ -258,7 +258,7 @@ find-yanked:
 # Find shell scripts whose +x/-x bits and magic bytes (e.g. `#!`) disagree
 check-mode:
     cargo build -p internal-tools
-    "{{ it }}" check-mode
+    {{ it }} check-mode
 
 # Delete gix-packetline-blocking/src and regenerate from gix-packetline/src
 copy-packetline: